7-4 
 
2.  Unscrew the four M3×6 screws, disconnect the pump cable and valve cable, and then take out the SpO
2
 board. 
 
 
 
7.3.5 Removing Pump and Valve 
Unscrew the two M3×6 screws and take out the valve. Then cut the two tie wraps to take out the pump. 
 
 
 
7.3.6 Removing the Recorder (Optional) 
Unscrew the two M3×6 screws, press locking tabs inward to release, and disconnect the recorder cable to remove the 
recorder. 
 
 
NOTE 
  The recorder can be disassembled separately. 
 
Pump cable 
Valve cable